L Edge
Master member
Now that I rebuilt my past model (striped servo) and now have a full video, now I can say it can be done.
History:
Working with foam has really open the field to make anything fly. Decided that no one has done a combination of swing wing aft(controlled by throttle position) to be able to move up the wing so it flies as a forward swept wing(again adjustable by throttle) while in flight. Completed this a couple of years ago, but flight was interrupted with servo problems. So no video, no go.
Goal:
1) Mode 1--To take off with wing perpendicular to fuse.
2) Mode 2--1/2 throttle to full, wing will incremently sweep back from perp to forty five degrees at full throttle.
3) Mode 3--1/2 throttle to full, wing will incremently sweep forward from perp to 33 degrees forward at full throttle.
1/2 throttle was point to flip switch
Done!!
Going to try:
1) launch with swept wing back.
2) launch with swept wing forward
Problems solved:
Redesigned the leading and edge wing angles and position of the servos so CG is stable in all conditions.
Solved stress problems on servoes as they rotate by using metal gears,( higher torque) and using graphite on bearing surfaces to reduce friction. Also reduced the speed of the servo which solved my problems.
Strengthen wing to reduce possibility flutter conditions.
Model:
Asked maybiz (RC Groups) if okay to modify his design and after his okay, this is the result.
Sorry, no paint job (should be black) and the graphite was needed to prove concept is possible.
History:
Working with foam has really open the field to make anything fly. Decided that no one has done a combination of swing wing aft(controlled by throttle position) to be able to move up the wing so it flies as a forward swept wing(again adjustable by throttle) while in flight. Completed this a couple of years ago, but flight was interrupted with servo problems. So no video, no go.
Goal:
1) Mode 1--To take off with wing perpendicular to fuse.
2) Mode 2--1/2 throttle to full, wing will incremently sweep back from perp to forty five degrees at full throttle.
3) Mode 3--1/2 throttle to full, wing will incremently sweep forward from perp to 33 degrees forward at full throttle.
1/2 throttle was point to flip switch
Done!!
Going to try:
1) launch with swept wing back.
2) launch with swept wing forward
Problems solved:
Redesigned the leading and edge wing angles and position of the servos so CG is stable in all conditions.
Solved stress problems on servoes as they rotate by using metal gears,( higher torque) and using graphite on bearing surfaces to reduce friction. Also reduced the speed of the servo which solved my problems.
Strengthen wing to reduce possibility flutter conditions.
Model:
Asked maybiz (RC Groups) if okay to modify his design and after his okay, this is the result.
Sorry, no paint job (should be black) and the graphite was needed to prove concept is possible.